Bump ansys-sphinx-theme from 0.13.0 to 0.13.1 (#462)

Bumps [ansys-sphinx-theme](https://github.com/ansys/ansys-sphinx-theme) from 0.13.0 to 0.13.1.
- [Release notes](https://github.com/ansys/ansys-sphinx-theme/releases)
- [Commits](ansys/ansys-sphinx-theme@v0.13.0...v0.13.1)

---
updated-dependencies:
- dependency-name: ansys-sphinx-theme
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

poetry.lock

@@ -68,7 +68,7 @@ optional = true
 
 [tool.poetry.group.docs.dependencies]
 # Doc packages
-ansys-sphinx-theme = { version = "0.13.0" }
+ansys-sphinx-theme = { version = "0.13.1" }
 numpydoc = { version = "1.6.0" }
 sphinx = { version = "7.2.6" }
 sphinx-notfound-page = { version = "1.0.0" }